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Concentration of Credit Risk - Additional Information (Detail) (USD $)
Jun. 30, 2013
Jun. 30, 2013
Bahamian Deposit Insurance Corporation [Member]
Jun. 30, 2013
Term Loan [Member]
Mar. 30, 2012
Term Loan [Member]
May 04, 2011
Term Loan [Member]
Jun. 30, 2013
Mortgage Payable [Member]
Jul. 11, 2008
Mortgage Payable [Member]
Concentration Of Credit Risk [Line Items]              
Insurance amount $ 250,000 $ 50,000          
Uninsured cash balance 10,700,000            
Basis spread on variable rate, points     1.00% 5.00% 5.00% 1.00% 0.75%
Interest obligation from basis points variation, per month     $ 4,200     $ 1,100  
Credit risk maturity period     Jul. 01, 2016     Jul. 01, 2013